Feed-water heater and cleaner



v(No Model.)

W; A. TAYLOR. FEED WATER HEATER AND CLEANER.

Patented Apr.

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UNITED STATES Fries.

Aram

FEED-WATER` HEATER AND CLEAN-ER.

SPECIFICATION forming part of Letters Patent No. 426,881, dated April29, 1890.

Application tiled December 26, 1889. Serial No. 334,970. (No model.)

To @ZZ whom t may concern.-

Be it known that I, WALTER ANDERSON TAYLOR, a citizen of the UnitedStates, residing at New Orleans, in the parish of Orleans and State ofLouisiana, have invented certain new and useful Improvements inFeed-Tater Heaters and Cleaners and I do hereby declare that thefollowing is afull, clear, and exact description of the same, referencebeing had to the lannexed drawings, making a part of this specification,and to the letters and gures of reference marked thereon.

Figure l represents a steam-boiler with one side partly broken away,showing the feed` water heater and cleaner suspended within the boiler.Fig. 2 shows a top view of the feed-water heater and cleaner. Fig. 3 isa longitudinal section of the feed-water heater and cleaner togetherwith part of the boiler-shell. Fig. 4 is a vertical cross-section of theboilerand feedwater heater and cleaner through the line A B, Fig. l.Fig. 5 represents an end view, of the feed-water heater and cleaner withpart of the boiler-shell in section. Fig. 6 shows an 'enlarged scale ofone of the bifu rcated studs or hangers by which the feed-water heaterand cleaner is suspended from the interior of the boiler-shell. Fig. 7shows a longitudinal section of a bushing for attaching and supportingthe feed-water pipe where it passes through the boiler. Fig. 8 is asection of the bushing through the line O D of Fig. 7. Fig. 9 is a faceview of one of the flange-heads for fastening together the sections ofthe feedwater heater and cleaner. Fig. l0 shows an enlarged view, at aright angle to Fig. G, of one of the bifurcated studs or hangers forsuspending the feed-water heater and cleaner.

This invention has for its object to provide a simple and efficientapparatus for economically and perfectly purifying and heating thefeed-water for steam-boilers; and it consists in the peculiar featuresof construction and novel combinations of devices, hereinafter describedand claimed.

Referring to the drawings, Figs. l and 3, the feed-water pipe l afterentering the boiler 26 may be made to pass direct to the heater andcleaner 2, as shown, or, if preferred, said feedpipe l maybe turnedbackward and forward top 'trough-like vessel, which may be made in y onepiece or in sections, as preferred. In the lower portion of the heaterand cleaner 2, above the perforated portion of the feed-pipe 3, is alower perforated plate 4:, and in the upper part of the heater andcleaner is a similar perforated plate 5. Between the lower perforatedplate 4 and the upper perforated plate 5 the cleaner 2 is filled withcoke or Vother suitable filtering material 6, as shown in Fig. 3. Thetop of the heater and cleaner 2 above the upper perforated plate 5' isopen or uncovered, while the bottom, sides, and ends of the cleaner aretightly closed. In the preferred construction, as shown, the ends of theheater and cleaner consist of flanged heads 7, to which sheet metal isbolted or riveted to form the bottom and sides of the vessel, and insome cases, when desirable, I make the heater and cleaner in sectionsbolted to'intermediate connecting flanged heads 8. (Shown vin Fig. 9.)The iianged heads '7 and 8 are provided with shoulders 9, that supportthe perforated plates 4 and 5, which are arranged within the heater andcleaner.

The feed-water, after entering the heater p and cleaner 2 through theperforations 3 of the feed-pipe, passes upward through the lower.perforated plate fl, the coke 6, andv .sheet of evaporating-surfaceabove sai d upper plate.

The whole heater and cleaner 2 is set slightly IOO inclined toward therear end, where a spout 10, projecting from the upper part of thecleaner, conducts the water into a crosstrough 11, which leads into theexternal longitudinal troughs 12 and 18, one of which is arranged oneach side of the heater and cleaner and extends forward to its fulllength, as shown in Fig. 2. These troughs 12 and 13 may beplain-surfaced channels, if desired, but are preferably provided withinterior deilecting-plates 14, as shown, in order to afford a tortuouspassage for the water passing through the troughs.

The water, after leaving the spout 10 and cross-trough 11, passes intothe longitudinal troughs 12 and 13, where its flow is lengthened andsomewhat retarded by passage around and between the deflecting-plates14, thus affording further time for the water to absorb heat and topartially evaporate, depositing also its sediment. The water passingthrough the troughs 12 and 13 unites again at the front end of theheater and cleaner 2 in the cross-trough 15, whence it is dischargedinto an open-top pot or chamber 16, and thence overflows into theboiler. In order to remove the sediment that collects in the bottom ofthe pot or chamber 16 a blow-oit pipe 17, Fig. 3, is provided, which isopen at its lower end, where it dips into said chamber. This blowo'lipipe 17 is provided with a check-valve 1S, which is connected to thefeed-pipe 1 by means of a T. A portion of the feed-pipe 1 thus servesboth for the passage oi feedwater and as a part of the blowolf device.rlhis is accomplished by connecting the outer end of the feed-pipe 1.,by means of a T, to a pipe 19, having a valve 20, and a pipe 22, havinga valve 21,thus enabling the pipe 1 to be used both for feeding theboiler and for blowing oit the heater and cleaner 2 and sedimentpot 1C.Then the valve 2O is closed and valve 21 opened, which by pipe 22 leadsto a feed-pump, (not shown,) the boiler will be supplied with waterpassing through the perforations 3 of the feed-pipe and through theheater and cleaner 2 and sediment-pot 1G, while by closing the valve 21and opening the valve 20 the sediment and dirty water can be blown outthrough the blow-oit' 17 and pipes 1 and 19.

The heater and cleaner2 is suspended from the top of the boiler by meansof bifurcated studs or hangers 23, having their lower ends provided withjaws or bifurcations to receive flanges on the upper ends of the heads 7and S, to which the studs are connected by means ot' bolts, as shown.r1`he enlarged part 23 ot' each stud or hanger, Figs. G and 10, isshaped to the curvature of the boiler, and a ring 24, of asbestus orother packing, is placed around the screw-threaded shank of the stud onthe inside of the boiler and in immediate contact therewith to form atight joint. On the outer end of the stud-shank is a nut 25, which onbeing screwed up draws the packing 2-1 into close contact with theboiler-shell, thereby formin a tight joint without requiring a washerunder the nut or any external packing.

In the boiler-shell 26, where the feed-pipe 1 passes through, isinserted a bushing 2U', Figs. 7 and 8, the lower part of which isprovided with a lan ge 27, to fit against the inner side of theboiler-shell, and above the flange is a dowel or projection 27, whichfits into a corresponding recess in the boiler-shell and prevents thebushing from turning when a nut 28 on its outer end is screwed up. Apiece of sheet-packing may be employed to make a tight joint inside theboiler-shell at the point where the bushing is attached. This bushing 26is screw-threaded on the inside in such a manner that thepipe-connections can be screwed into place from both the inside andoutside of the boiler, and I find that this way of passing a pipethrough the boiler is preferable to the old way of having a nut andwasher on each side of the boilershell and. packing under each washer,the joints being made tight by screwing up the nuts.

The heater and cleaner 2 may be made in a single length instead of intwo or more sections by employing cast-brass or other suitable heads andmaking the sides and bottom from a single piece of: `metal or fromseveral sheets riveted or bolted together and bolted or riveted at theirouter ends to the two heads. By making the shell in one sheet leakingjoints are readily avoided, through which water might directly enter theboiler, which is more likely to occur when the sides and bottom are puttogether in sections; but il' circumstances compel the heater andcleaner to be made in sections the joints must be made water-tight.

lf the man-hole of the boiler is intheboilcrhead, I may make the heaterand cleaner in one piece or in several sheets securely rivetedtogether,but having only two heads. In this shape it is shippedcompletely put together, readily lilled with coke or similar material,and can be inserted into the boiler through the man-hole in theboiler-head and hung to the shell of the boiler by means of thesuspension studs or hangers 28, before described. If the man-hole of theboiler is in the top of the shell, it will not be possible to get intothe boiler a long purifier, heater, or cleaner made in one piece, andtherefore in such cases I make the heater and cleaner in two or moresections, short enough to get each one inside the boiler through theman.- hole. The sections, after being separately inserted, are boltedtogether inside the boiler, the perforated feed-pipe, the plates, andthe coke or other iltering material are put in place, and the wholepurifier is then suspended from the interior of the boiler-shell bymeans of the hangers or studs, as before described.

rlhe troughs 12, 13, and 15 are putin posiu IOO IIO

tion, the sediment-pot 16 is put up and bolted securely to the head ofthe cleaner, and the external and internal piping-connections being thenmade the apparatus will be ready for use.

Vhat I claim isl. In a feed-water heater' and cleaner, an open-toptrough-shaped vessel containing in its lower part a perforated feed-pipeand having above said pipe a lower perforated plate and an upperperforated plate, with a stratum of filtering material between saidplates, substantially as described.

2. In. a feed-Water heater and cleaner, the

combination of an Open-top trough-like shell or vessel, an internalperforated feed-pipe, an upper and a lower perforated plate, filteringmaterial between the plates, an external trough 'communicating with thespace above the upper perforated plate, a chamber to receive filteredwater from said external trough, anda blow-Out pipe leading from saidchamber, substantially as described. 3. In a feed-water heater andcleaner, the combination of an open-top trough-like shell or vesselprovided with an upper and alower perforated plate, filtering materialbetween said plates, troughs to receive the filtered water from thespace above the upper perforated plate, an Open sediment port or chamberto receive the iiltered water from said troughs, and a combined feed andblow-out pipe, substantially as described.O

4. In a feed-water heater and cleaner, the eo1nbination,with the boilerand a suspended heater and cleaner, of a sediment pot or chambercommunicating with the heater and cleaner, and a feed-water pipecommunieatin g with the heater and cleaner and having a part Openinginto the sediment-pot, and valves to control the passage of feed-waterand to con-k and having external troughs for filtered water, asediment-pot into which the filtered water is discharged, and combinedfeed and blow-Off pipes, substantially as described.`

6. The combination, with a steam-boiler and afeed-water heater andcleaner inclosed in the boiler, of a bushing for the feed-pipe insertedin the boiler-shell and provided with an inner iianged end, a dowel toprevent the bushing from turning, a nut to lock the bushing in place,and an internal screw-thread to engage the feed-pipe, substantially asdescribed.

sov

7. The combination, with'a steam-boiler, of

the feed-water heater and cleaner 2, the sediment-pot 16, the pipe 17,having acheck-valve 18, the combined feed and blow-Oli.c pipe l, and thepipes 19 and 22, having-valves 2O and 2l, substantially as described.

8. The colnbinaton,with asteaIn-boiler and the suspended feed-waterheater and cleaner 2, having flanged heads '7, of the bifurcated studsor hangers 23, secured in the boilershell and engaged with said flangedheads, substantially as described.

9. The combination, with the feed-water heater and cleaner 2 and thesediment-pot 16, of the troughs l2 and 13, provided withdeflecting-plates 14.-, substantially as described.

In testimony whereof I have hereunto subscribed my name in the presenceof two witnesse's.

wALTER ANDERSON TAYLOR.

Titnessesz WALTER H. COOK, ROBERT RIEs.

